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On the binocular summation of chromatic contrast

Simmons, D.R., and Kingdom, F.A. (1998) On the binocular summation of chromatic contrast. Vision Research, 38 (8). pp. 1063-1071. ISSN 0042-6989

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Abstract

The binocular summation of chromatic contrast was investigated under a variety of stimulus conditions. Binocular and monocular contrast detection thresholds were measured using 0.5 cpd Gabor patches. It was found that, using stimuli which contained combinations of chromatic and luminance contrast, binocular detection could take place independently in luminance-contrast- and chromatic-contrast-sensitive mechanisms. It was also found that, with chromatic stimuli, levels of binocular summation were above those expected from probability summation between the eyes, and thus showed evidence for binocular neural summation within chromatic detection mechanisms. The implications of these results for (a) the binocularity of chromatic detection mechanisms, and (b) the suggested link between stereopsis and binocular neural summation, are discussed.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s):Simmons, Dr David
Authors: Simmons, D.R., and Kingdom, F.A.
College/School:College of Science and Engineering > School of Psychology
Journal Name:Vision Research
Publisher:Pergamon
ISSN:0042-6989
ISSN (Online):1878-5646

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